a-ha aaaa aaab aaac aaad aaah aaam aaba aabb aabc aabd aabh aabm aaca aacb aacc aacd aach aacm aada aadc aaha aama aamb aamc aamd abaa abab abac abad abam abb- abba abbb abca abcb abcc abcd abch abda abha abhm abma abmb abmc acaa acab acac acad acba acca accc accd acch accm acda acdb acdc acdm acha achh acma acmc acmh adaa adab adac adad adah adam adba adbc adcc adda addc addd adha adhd adma admb ahab ahac ahad ahah aham ahha ahmc amaa amac amad amah amam amb- amba amca amcc amda amdh amm- amma baaa baad baah baam baba babb babm bac- baca bacc bach bada badb badd badh baha bama bamb bamc bamm bbad bbbb bbch bbcm bbdd bcaa bcam bcbc bcca bccc bccm bcda bchd bcma bdbc bddc bddh bhca bhcc bmaa bmdb c-cd caaa caab caac caah caam caba cac- caca cacc cach cacm cada cadc cadd cadm caha cama camb camc camh camm cbac cbbc cbca cbcc cbcm cbdb cbdc cbha ccaa ccab ccac ccad ccam ccba ccbc ccca cccb cccc cccm ccdc ccdh ccdm ccha ccma ccmb ccmc ccmd ccmm cdaa cdac cdad cdba cdda cddb cdma chaa chab chac chad chah cham chca chch chcm chha chmb chmc cmaa cmac cmah cmba cmbc cmcc cmda cmdb cmha cmhc cmmb cmmc daab daad daam daba dabb daca dada daha dahm dama damb damh damm dbcc dcbc dcca dccb dccc dcdb dcma dddd dhaa dhad dham dmaa dmab dmac dmba dmcc dmch dmcm dmdc dmhc haab haad haam haba hada hadh haha hama hamc hamd hamm hbcd hcbc hcca hccb hccc hcch hcmc hcmm hdca hdda hhaa hhhh hmda hmhb hmmm maaa maac maad maam maba mac- maca macb macc macd mach mada madb madc madd madh maha mama mamc mbac mbam mbba mbca mbda mbdb mcaa mcac mcad mcba mcbc mcca mccc mccd mcdc mcdd mcmc mdac mdca mdcc mdch mddm mdhc mdma mdmc mhac mhmm mmaa mmab mmac mmcc mmcd mmcm mmda mmdb mmdc mmhm mmmc mmmd mmmh mmmm